I just had my truck dyno'd in Saranac (over by Ionia) by a guy named Rich Melcher. The name of his new business is RAM Racing. No, not Ram as in Dodge trucks, but that's his initials. He has a great place that will only get better with time and is very knowledgeable and his prices are GREAT. I'm not sure if I'm allowed to post his number. If it's OK, someone let me know and I'll do so. He can handle trucks and cars--my '94 has 33" tires and was no trouble at all. He also is into the computer tuning, I believe he can burn chips and lots of other enhancements.